Signal Transmission in a Wireless Communication System

1. A method for transmitting information in a wireless communication system, comprising: transmitting, by a wireless communication apparatus, a first portion of a signal comprising a first sector-specific sequence in a first OFDM symbol; and transmitting, by the wireless communication apparatus, a second portion of the signal comprising a second sector-specific sequence multiplied with a complex number that corresponds to an interference value in a second OFDM symbol.

2. The method of claim 1 , wherein the signal comprises an interference report.

3. The method of claim 1 , wherein both sequences are multiplied by a complex number that corresponds to an interference value.

4. The method of claim 1 , wherein the first portion comprises a sector-specific random sequence multiplied by a single complex value X and the second portion comprises a different sector-specific random sequence multiplied by another value Y, where Y is the square of X.

5. The method of claim 1 , wherein the first portion has a different sector-specific sequence than the second portion, and phases multiplying the two sequences are different.

6. The method of claim 5 , wherein the phases are chosen from a group including 0, 2π/3 and 4π/3.

7. A wireless communications apparatus, comprising: a processor that executes instructions for transmitting a first portion of a signal comprising a first sector-specific sequence in a first OFDM symbol and a second portion of the signal comprising a second sector-specific sequence multiplied with a complex number that corresponds to an interference value in a second OFDM symbol; and a memory that stores information relating to the instructions generated by the processor.

8. The wireless communications apparatus of claim 7 wherein the signal comprises an interference report.

9. The wireless communications apparatus of claim 7 , wherein both sequences are multiplied by a complex number that corresponds to an interference value.

10. The wireless communications apparatus of claim 7 , wherein the first portion comprises a sector-specific random sequence multiplied by a single complex value X and the second portion comprises a different sector-specific random sequence multiplied by another value Y, where Y is the square of X.

11. The wireless communications apparatus of claim 7 , wherein the first portion has a different sector-specific sequence than the second portion, and phases multiplying the two sequences are different.

12. The wireless communications apparatus of claim 11 , wherein the phases are chosen from a group including 0, 2π/3 and 4π/3.

13. A wireless communications apparatus that provides interference information, comprising: means for transmitting a first portion of a signal comprising a first sector-specific sequence in a first OFDM symbol; and means for transmitting a second portion of the signal comprising a second sector-specific sequence multiplied with a complex number that corresponds to an interference value in a second OFDM symbol.

14. The wireless communications apparatus of claim 13 , wherein the signal comprises an interference report.

15. The wireless communications apparatus of claim 13 , wherein both sequences are multiplied by a complex number that corresponds to an interference value.

16. The wireless communications apparatus of claim 13 , wherein the first portion comprises a sector-specific random sequence multiplied by a single complex value X and the second portion comprises a different sector-specific random sequence multiplied by another value Y, where value Y is the square of value X.

17. The wireless communications apparatus of claim 13 , wherein the first portion has a different sector-specific sequence than the second portion, and phases multiplying the two sequences are different.

18. The wireless communications apparatus of claim 17 , wherein the phases are chosen from a group including 0, 2π/3 and 4π/3.

19. A non-transitory computer-readable medium as an article of manufacture having stored thereon instructions that are executable by a processor for: transmitting a first portion of a signal comprising a first sector-specific sequence in a first OFDM symbol; and transmitting a second portion of the signal comprising a second sector-specific sequence multiplied with a complex number that corresponds to an interference value in a second OFDM symbol, wherein the signal comprises an interference report.

20. The computer-readable medium of claim 19 , wherein the first portion has a different sector-specific sequence than the second portion, and a phase multiplying the two sequences is different, the phase is chosen from a group including 0, 2π/3 and 4π/3.

21. The computer-readable medium of claim 19 , wherein the first portion comprises a sector-specific random sequence multiplied by a single complex value X and the second portion comprises a different sector-specific random sequence multiplied by another value Y, where Y is the square of X.

22. An apparatus operable in a wireless communication system, the apparatus comprising: a processor configured to transmit a first portion of a signal comprising a first sector-specific sequence in a first OFDM symbol; and transmit a second portion of the signal comprising a second sector-specific sequence multiplied with a complex number that corresponds to an interference value for the signal in a second OFDM symbol.

23. A method for processing information in a wireless communication system, comprising: receiving, by a wireless communication apparatus, a signal that includes a first portion and a second portion, wherein the first portion of the signal comprises a first sector-specific sequence and the second portion of the signal comprises a second sector-specific sequence multiplied with a complex number that corresponds to an Other Sector Interference (OSI) value; and using, by the wireless communication apparatus, the first portion and the second portion to obtain the OSI value.

24. The method of claim 23 , further comprising modifying a transmit power level based on the OSI value.

25. The method of claim 23 , wherein the OSI value indicates one of an excessive interference, a high interference, or a minimal interference.

26. The method of claim 23 , wherein the first portion corresponds to a first OFDM symbol and the second portion corresponds to a second OFDM symbol.

27. The method of claim 26 , further comprising: performing channel estimation using the first portion to derive a channel estimate; and using the channel estimate to compute the OSI value included in the second portion.

28. The method of claim 23 , wherein the signal comprises an interference report.

29. A wireless communications apparatus, comprising: a processor that executes instructions for receiving a signal that includes a first portion and a second portion and using the first portion and the second portion to obtain an Other Sector Interference (OSI) value, wherein the first portion of the signal comprises a first sector-specific sequence and the second portion of the signal comprises a second sector-specific sequence multiplied with a complex number that corresponds to the OSI value; and a memory that stores information relating to the instructions generated by the processor.

30. The wireless communications apparatus of claim 29 , wherein the processor further executes instructions for modifying a transmit power level based on the OSI value.

31. The wireless communications apparatus of claim 29 , wherein the OSI value indicates one of an excessive interference, a high interference, or a minimal interference.

32. The wireless communications apparatus of claim 29 , wherein the first portion corresponds to a first OFDM symbol and the second portion corresponds to a second OFDM symbol.

33. The wireless communications apparatus of claim 32 , wherein the processor further executes instructions for performing channel estimation using the first portion to derive a channel estimate and uses the channel estimate to compute the value included in the second portion.

34. The wireless communications apparatus of claim 29 , wherein the signal comprises an interference report.

35. A wireless communications apparatus that processes information, comprising: means for receiving a signal that includes a first portion and a second portion, wherein the first portion of the signal comprises a first sector-specific sequence and the second portion of the signal comprises a second sector-specific sequence multiplied with a complex number that corresponds to an Other Sector Interference (OSI) value; and means for using the first portion and the second portion to obtain the OSI value.

36. The wireless communications apparatus of claim 35 , further comprising a means for modifying a transmit power level based on the OSI value.

37. The wireless communications apparatus of claim 35 , wherein the OSI value indicates one of an excessive interference, a high interference, or a minimal interference.

38. The wireless communications apparatus of claim 35 wherein the first portion corresponds to a first OFDM symbol and the second portion corresponds to a second OFDM symbol.

39. The wireless communications apparatus of claim 38 , further comprising: means for performing channel estimation using the first portion to derive a channel estimate; and means for using the channel estimate to compute the OSI value.

40. The wireless communications apparatus of claim 35 , wherein the signal comprises an interference report.

41. A non-transitory computer-readable medium as an article of manufacture having stored thereon instructions that are executable by a processor for: receiving a signal that includes a first portion and a second portion, wherein the first portion of the signal comprises a first sector-specific sequence and the second portion of the signal comprises a second sector-specific sequence multiplied with a complex number that corresponds to an Other Sector Interference (OSI) value; using the first portion and the second portion to obtain the OSI value that indicates one of an excessive interference, a high interference, or a minimal interference; and modifying a transmit power level based on the OSI value.

42. An apparatus operable in a wireless communication system, the apparatus comprising: a processor configured to: receive a signal that includes a first portion and a second portion, wherein the first portion of the signal comprises a first sector-specific sequence and the second portion of the signal comprises a second sector-specific sequence multiplied with a complex number that corresponds to an Other Sector Interference (OSI) value; utilize the first portion and the second portion to obtain the OSI value that indicates one of an excessive interference, a high interference, or a minimal interference; and modify a transmit power level based on the OSI value.